(d)
Member States shall require transmission system operators to maintain an appropriate level of operational network security. To that effect, transmission system operators shall maintain an appropriate level of technical transmission reserve capacity for operational network security and cooperate with the transmission system operators concerned to which they are interconnected. The level of foreseeable circumstances in which security shall be maintained is defined in the operational network security rules;
← art_4__para_1__point_c__text_1 · All articles · art_4__para_1__point_d__text_1 →
Source: EUR-Lex (Cellar) · retrieved 2026-11-05 · Text as adopted (Official Journal); later amendments are not incorporated in this text.